How is transcription terminated in E. coli?Select one or more:O a. by the interaction of Rho and Rho binding sites in RNA.O b. by the interaction of ter site and Tus proteinOc. by formation of a hairpin structure in RNA.O d. by formation of a hairpin structure of DNA at the end.

Transcription is the process of making mRNA from DNA.it is always in the 5' to 3' direction.

Answered: Select one or more: O a. by the…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Which of the following statements are true about eukaryotic mRNA?a. The sigma factor is essential for the correct initiationof transcription.b. Processing of the nascent mRNA may begin beforeits transcription is complete.c. Processing takes place in the cytoplasm.d. Termination is accomplished by the use of a hairpinloop or the use of the rho factor.e. Many RNAs can be transcribed simultaneously fromone DNA template
Consider this list (below) of steps involved in transcription. These steps are out of order. TRANSCRIPTION: 1. mRNA travels through a nuclear pore and enters the cytoplasm 2. the mRNA polymerase attaches at the start of a specific gene 3. RNA polymerase reads the gene surface4. a transcription factor bonds to a promoter site5. DNA molecule is unwound 6. a complimentary mRNA is produced What is the correct order of this transcription?
Why might a single base-pair mutation in eukaryotic mRNA be less serious than one in prokaryotic mRNA? a. If the mutation occurs in the 5' end of the start site, it will not affect the gene product. b. If the mutation occurs in the exon, it will not affect the gene product. c. If the mutation occurs in the splice site of a transcript with alternative splicing, only one gene product may affected. O d. If the mutation occurs in the intron or not in the splice site of a transcript with alternative splicing, it will nc affect the gene product. O e. If the mutation occurs in the 3' end of the start site, it will not affect the gene product. OLIE STIC N 1A
Arrange the statements in their proper order by writing the corresponding letter (e.g. A) for each statement in the space provided below. A. The single-stranded RNA would complement the target RNA. B. Gene expression is inactivated once the mRNA is no longer accessible for translation. C. The risk-induced silencing complex which is composed of RNA and protein subunits is formed. D. Double-stranded, non-coding RNA is cleaved by Dicer. E. The mRNA can be cleaved or remain bound by the RISC. 1. 2. 3. 4. 5.
How is the splicing of U2-dependent introns different from that of U12-dependent introns? O a. U12-dependent introns are self-splicing. O b. U2-dependent introns have longer consensus sequences at the splice sites. O.U12-dependent introns have no branch site. d. The SR proteins in the spliceosomes are different. e. Most of the snRNPs in the spliceosomes are different.
if the following DNA sequence were transcribed, which of the following describes the output of this process? 3'- TCTGGACA-5' A. This would produce a protein that looks like 5'- A G A C C U G U -3' B. This would produce a tRNA that looks like 3'- A G AC C U G U -5' C. This would produce an mRNA that looks like this: 5'- A G AC C U G U -3' D. This would produce an mRNA that looks like 3'- U C U G G A CA -5' E. This would produce another strand of DNA that 0ok like 5-AG ACCT GT-3. ..
Choose the item in column 2 that best matches each item in column 1. A. Provides information for production of protein B. Binds to promoter C. Promoter has a box A and box B consensus sequences D. Autocatalytic RNA molecules E. Associated with transcription termination F. Polymerization of ribonucleotides to form RNA molecules G. 7-methyl guanosine H. MRNA prior to processing select - 1. Core RNA polymerase select 2. rho (p) factor select 3. hnRNA select - 4. RNA select -5. RNA polymerase holoenzyme select 6. Ribozymes select - 7. 5' MRNA cap select 8. MRNA
Consider the following segment of a template strand of DNA: Part A -ATA AGC TTC GAC- What is the mRNA produced for the segment? -UAU-UCG-AAG-CUC- Part B Complete previous part(s) • Part C What is the mRNA if a mutation changes AGC to AAC? Part D Complete previous part(s) Part E What is the MRNA produced if G is inserted at the beginning of the DNA segment?
During the termination of translation, what is the correct polypeptide sequence which will be released by the ribosome? 5' - AUG - UAU - CUC - UUU - 3' (mRNA codon sequence) 3' - UAC - AUA - GAG - AAA - 5' (tRNA anticodon sequence) A.START - Tyr - Leu - Phe B. Tyr - Ile - Glu - Lys C. START - Ile - Glu - Lys D. Ser - Tyr - Gly - Cys
17) Which mRNA modification is likely absent if the mRNA is degrading prematurely from the 5’ end of the mRNA? A) addition of the 3’ polyadenylated tail B( splicing together if exons C removal of introns D RNA editing E addition of the 7- methlgguanosine cap to the 5’ end
What is the phenomenon of RNA interference (RNAi)? DuringRNAi, explain how the double-stranded RNA is processed andhow it leads to the silencing of a complementary mRNA.
Select the events from eukaryotic transcription from the list below and list them below in order, by letter, from earliest to latest during transcription. A. Sigma factor binds 5'TTGACA?' B. Rho separates DNA/RNA hybrid C. TFIID binds TATA Box D. RNA Pol Il binds E. Holoenzyme forms F. Template strand is used to synthesize a 5' to 3' polymer G. Transcript is moved into the cytoplasm H. U1, U2, U4, U5 and U6 sn RNPs bind transcript

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Select one or more: O a. by the interaction of Rho and Rho binding sites in RNA. O b. by the interaction of ter site and Tus protein O c. by formation of a hairpin structure in RNA. O d. by formation of a hairpin structure of DNA at the end.